Question

In: Statistics and Probability

A statistics class collected data about male and female heights. The sample of 143 females had...

A statistics class collected data about male and female heights. The sample of 143 females had a mean height of 64 inches with a standard deviation of 2.84 inches. Assuming that the standard deviation of all such female heights is 2.60 inches, use a 0.05 significance level to test the claim that women’s heights have a mean different from 63.8 inches.

We are testing the claim about a (mean, proportion, standard deviation): ______________________

Which test will you use (proportion, z-test, t-test, chi-square test): ____________________________

H0: ____________________________
H1: ____________________________

Test Statistic(s): (3 decimals) _________________________________

P-value: (4 decimals)________________________________________

Critical Value(s): (3 decimals)_________________________________

Reject or fail to reject: _____________________________

Conclusion: _________________________________________________________________ ___________

  ____________________________________________________________________________
  ____________________________________________________________________________

2.

In a USA Today poll of 737 respondents, 678 people said that they do not open unfamiliar email and instant-message links. Use a 0.01 significance level to test the claim that more than 75% of us do not open unfamiliar email and instant-message links.

We are testing the claim about a (mean, proportion, standard deviation): ______________________

Which test will you use (proportion, z-test, t-test, chi-square test): ____________________________

H0: ____________________________
H1: ____________________________

Test Statistic(s): (3 decimals)_________________________________

P-value: (4 decimals)________________________________________

Critical Value(s): (3 decimals)_________________________________

Reject or fail to reject: _____________________________

Expert Solution

orchestra answered 2 years ago

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In an introductory statistics class, there are 18 male and 22 female students. Two students are...

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Questions 28-29: You have collected data on heights, in inches, from 41 males and 52 females....

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In Milwaukee, they randomly sampled 280 female voters, and 220 male voters. They collected data on...

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A random sample of 201 newborn piglets contains 90 females (data collected by Alexa Hopping and...

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2. According to survey data collected from 500 students in a recent Statistics class, the histogram...

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Using the data we collected in class about weight and height, find the following:

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